[CentOS] To PAE or not to PAE...

[John Doe]

From: Hakan Koseoglu <hakan at koseoglu.org>

> > In the past, I heard that these 700MB were normally  reserved for bios or 
>chipset
> It still is, even with with 64  bit. If your motherboard supports 
> remapping this memory with 64 bit you can  use the whole 4GB. Otherwise 
> you're limited to 3.2:
> 
> hakan at photon:~$  free -m
>               total        used       free     shared     buffers     cached
> Mem:           3262       1972       1290           0        103         737
> -/+ buffers/cache:       1131        2131
> Swap:         7812         308       7504
> hakan at photon:~$  arch
> x86_64

Thx for all the answers.
As a matter of fact, while my Dell Vostro 410 was getting 3.3GB without PAE,
a new Vostro 430 was getting only 3GB (but a full 4GB in PAE)...
I went anyway for the non PAE just for peace of mind and because 3GB is still 
plenty.

Thx,
JD